-# Copyright (c) 2018 Cisco and/or its affiliates.
+# Copyright (c) 2022 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
"""VPP Configuration File Generator library."""
import re
-import time
-from resources.libraries.python.ssh import SSH
+from resources.libraries.python.Constants import Constants
+from resources.libraries.python.ssh import exec_cmd_no_error
from resources.libraries.python.topology import NodeType
from resources.libraries.python.topology import Topology
+from resources.libraries.python.VPPUtil import VPPUtil
-__all__ = ['VppConfigGenerator']
+__all__ = [u"VppConfigGenerator"]
-class VppConfigGenerator(object):
+def pci_dev_check(pci_dev):
+ """Check if provided PCI address is in correct format.
+
+ :param pci_dev: PCI address (expected format: xxxx:xx:xx.x).
+ :type pci_dev: str
+ :returns: True if PCI address is in correct format.
+ :rtype: bool
+ :raises ValueError: If PCI address is in incorrect format.
+ """
+ pattern = re.compile(
+ r"^[0-9A-Fa-f]{4}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}\.[0-9A-Fa-f]$"
+ )
+ if not re.match(pattern, pci_dev):
+ raise ValueError(
+ f"PCI address {pci_dev} is not in valid format xxxx:xx:xx.x"
+ )
+ return True
+
+
+class VppConfigGenerator:
"""VPP Configuration File Generator."""
def __init__(self):
"""Initialize library."""
# VPP Node to apply configuration on
- self._node = ''
- # VPP Hostname
- self._hostname = ''
+ self._node = u""
+ # Topology node key
+ self._node_key = u""
# VPP Configuration
- self._nodeconfig = {}
+ self._nodeconfig = dict()
# Serialized VPP Configuration
- self._vpp_config = ''
+ self._vpp_config = u""
# VPP Service name
- self._vpp_service_name = 'vpp'
+ self._vpp_service_name = u"vpp"
# VPP Logfile location
- self._vpp_logfile = '/tmp/vpe.log'
+ self._vpp_logfile = u"/tmp/vpe.log"
# VPP Startup config location
- self._vpp_startup_conf = '/etc/vpp/startup.conf'
- # VPP Startup config backup location
- self._vpp_startup_conf_backup = None
+ self._vpp_startup_conf = u"/etc/vpp/startup.conf"
- def set_node(self, node):
+ def set_node(self, node, node_key=None):
"""Set DUT node.
:param node: Node to store configuration on.
+ :param node_key: Topology node key.
:type node: dict
+ :type node_key: str
:raises RuntimeError: If Node type is not DUT.
"""
- if node['type'] != NodeType.DUT:
- raise RuntimeError('Startup config can only be applied to DUT'
- 'node.')
+ if node[u"type"] != NodeType.DUT:
+ raise RuntimeError(
+ u"Startup config can only be applied to DUTnode."
+ )
self._node = node
- self._hostname = Topology.get_node_hostname(node)
-
- def set_vpp_logfile(self, logfile):
- """Set VPP logfile location.
-
- :param logfile: VPP logfile location.
- :type logfile: str
- """
- self._vpp_logfile = logfile
-
- def set_vpp_startup_conf_backup(self, backup='/etc/vpp/startup.backup'):
- """Set VPP startup configuration backup.
-
- :param backup: VPP logfile location.
- :type backup: str
- """
- self._vpp_startup_conf_backup = backup
+ self._node_key = node_key
def get_config_str(self):
"""Get dumped startup configuration in VPP config format.
config[path[0]] = value
return
if path[0] not in config:
- config[path[0]] = {}
+ config[path[0]] = dict()
+ elif isinstance(config[path[0]], str):
+ config[path[0]] = dict() if config[path[0]] == u"" \
+ else {config[path[0]]: u""}
self.add_config_item(config[path[0]], value, path[1:])
def dump_config(self, obj, level=-1):
:type level: int
:returns: nothing
"""
- indent = ' '
+ indent = u" "
if level >= 0:
- self._vpp_config += '{}{{\n'.format((level) * indent)
+ self._vpp_config += f"{level * indent}{{\n"
if isinstance(obj, dict):
for key, val in obj.items():
- if hasattr(val, '__iter__'):
- self._vpp_config += '{}{}\n'.format((level + 1) * indent,
- key)
+ if hasattr(val, u"__iter__") and not isinstance(val, str):
+ self._vpp_config += f"{(level + 1) * indent}{key}\n"
self.dump_config(val, level + 1)
else:
- self._vpp_config += '{}{} {}\n'.format((level + 1) * indent,
- key, val)
+ self._vpp_config += f"{(level + 1) * indent}{key} {val}\n"
else:
for val in obj:
- self._vpp_config += '{}{}\n'.format((level + 1) * indent, val)
+ self._vpp_config += f"{(level + 1) * indent}{val}\n"
if level >= 0:
- self._vpp_config += '{}}}\n'.format(level * indent)
+ self._vpp_config += f"{level * indent}}}\n"
def add_unix_log(self, value=None):
"""Add UNIX log configuration.
:param value: Log file.
:type value: str
"""
- path = ['unix', 'log']
+ path = [u"unix", u"log"]
if value is None:
value = self._vpp_logfile
self.add_config_item(self._nodeconfig, value, path)
- def add_unix_cli_listen(self, value='localhost:5002'):
+ def add_unix_cli_listen(self, value=u"/run/vpp/cli.sock"):
"""Add UNIX cli-listen configuration.
:param value: CLI listen address and port or path to CLI socket.
:type value: str
"""
- path = ['unix', 'cli-listen']
+ path = [u"unix", u"cli-listen"]
self.add_config_item(self._nodeconfig, value, path)
- def add_unix_gid(self, value='vpp'):
+ def add_unix_cli_no_pager(self):
+ """Add UNIX cli-no-pager configuration."""
+ path = [u"unix", u"cli-no-pager"]
+ self.add_config_item(self._nodeconfig, u"", path)
+
+ def add_unix_gid(self, value=u"vpp"):
"""Add UNIX gid configuration.
:param value: Gid.
:type value: str
"""
- path = ['unix', 'gid']
+ path = [u"unix", u"gid"]
self.add_config_item(self._nodeconfig, value, path)
def add_unix_nodaemon(self):
"""Add UNIX nodaemon configuration."""
- path = ['unix', 'nodaemon']
- self.add_config_item(self._nodeconfig, '', path)
+ path = [u"unix", u"nodaemon"]
+ self.add_config_item(self._nodeconfig, u"", path)
def add_unix_coredump(self):
"""Add UNIX full-coredump configuration."""
- path = ['unix', 'full-coredump']
- self.add_config_item(self._nodeconfig, '', path)
+ path = [u"unix", u"full-coredump"]
+ self.add_config_item(self._nodeconfig, u"", path)
def add_unix_exec(self, value):
"""Add UNIX exec configuration."""
- path = ['unix', 'exec']
+ path = [u"unix", u"exec"]
self.add_config_item(self._nodeconfig, value, path)
- def add_api_segment_gid(self, value='vpp'):
+ def add_socksvr(self, socket=Constants.SOCKSVR_PATH):
+ """Add socksvr configuration."""
+ path = [u"socksvr", u"socket-name"]
+ self.add_config_item(self._nodeconfig, socket, path)
+
+ def add_graph_node_variant(self, variant=Constants.GRAPH_NODE_VARIANT):
+ """Add default graph node variant.
+
+ :param value: Graph node variant default value.
+ :type value: str
+ """
+ if variant == u"":
+ return
+ variant_list = [u"hsw", u"skx", u"icl"]
+ if variant not in variant_list:
+ raise ValueError("Invalid graph node variant value")
+ path = [u"node", u"default", u"variant"]
+ self.add_config_item(self._nodeconfig, variant, path)
+
+ def add_api_segment_gid(self, value=u"vpp"):
"""Add API-SEGMENT gid configuration.
:param value: Gid.
:type value: str
"""
- path = ['api-segment', 'gid']
+ path = [u"api-segment", u"gid"]
self.add_config_item(self._nodeconfig, value, path)
def add_api_segment_global_size(self, value):
:param value: Global size.
:type value: str
"""
- path = ['api-segment', 'global-size']
+ path = [u"api-segment", u"global-size"]
self.add_config_item(self._nodeconfig, value, path)
def add_api_segment_api_size(self, value):
:param value: API size.
:type value: str
"""
- path = ['api-segment', 'api-size']
+ path = [u"api-segment", u"api-size"]
+ self.add_config_item(self._nodeconfig, value, path)
+
+ def add_buffers_per_numa(self, value):
+ """Increase number of buffers allocated.
+
+ :param value: Number of buffers allocated.
+ :type value: int
+ """
+ path = [u"buffers", u"buffers-per-numa"]
+ self.add_config_item(self._nodeconfig, value, path)
+
+ def add_buffers_default_data_size(self, value):
+ """Increase buffers data-size allocated.
+
+ :param value: Buffers data-size allocated.
+ :type value: int
+ """
+ path = [u"buffers", u"default data-size"]
self.add_config_item(self._nodeconfig, value, path)
def add_dpdk_dev(self, *devices):
:param devices: PCI device(s) (format xxxx:xx:xx.x)
:type devices: tuple
- :raises ValueError: If PCI address format is not valid.
"""
- pattern = re.compile("^[0-9A-Fa-f]{4}:[0-9A-Fa-f]{2}:"
- "[0-9A-Fa-f]{2}\\.[0-9A-Fa-f]$")
for device in devices:
- if not pattern.match(device):
- raise ValueError('PCI address {} to be added to host {} '
- 'is not in valid format xxxx:xx:xx.x'.
- format(device, self._hostname))
- path = ['dpdk', 'dev {0}'.format(device)]
- self.add_config_item(self._nodeconfig, '', path)
+ if pci_dev_check(device):
+ path = [u"dpdk", f"dev {device}"]
+ self.add_config_item(self._nodeconfig, u"", path)
+
+ def add_dpdk_dev_parameter(self, device, parameter, value):
+ """Add parameter for DPDK device.
+
+ :param device: PCI device (format xxxx:xx:xx.x).
+ :param parameter: Parameter name.
+ :param value: Parameter value.
+ :type device: str
+ :type parameter: str
+ :type value: str
+ """
+ if pci_dev_check(device):
+ path = [u"dpdk", f"dev {device}", parameter]
+ self.add_config_item(self._nodeconfig, value, path)
def add_dpdk_cryptodev(self, count):
"""Add DPDK Crypto PCI device configuration.
"""
cryptodev = Topology.get_cryptodev(self._node)
for i in range(count):
- cryptodev_config = 'dev {0}'.format(
- re.sub(r'\d.\d$', '1.'+str(i), cryptodev))
- path = ['dpdk', cryptodev_config]
- self.add_config_item(self._nodeconfig, '', path)
- self.add_dpdk_uio_driver('igb_uio')
+ cryptodev_config = re.sub(r"\d.\d$", f"1.{str(i)}", cryptodev)
+ path = [u"dpdk", f"dev {cryptodev_config}"]
+ self.add_config_item(self._nodeconfig, u"", path)
+ self.add_dpdk_uio_driver(u"vfio-pci")
def add_dpdk_sw_cryptodev(self, sw_pmd_type, socket_id, count):
"""Add DPDK SW Crypto device configuration.
:type count: int
"""
for _ in range(count):
- cryptodev_config = 'vdev cryptodev_{0}_pmd,socket_id={1}'.\
- format(sw_pmd_type, str(socket_id))
- path = ['dpdk', cryptodev_config]
- self.add_config_item(self._nodeconfig, '', path)
+ cryptodev_config = f"vdev cryptodev_{sw_pmd_type}_pmd," \
+ f"socket_id={str(socket_id)}"
+ path = [u"dpdk", cryptodev_config]
+ self.add_config_item(self._nodeconfig, u"", path)
def add_dpdk_dev_default_rxq(self, value):
"""Add DPDK dev default rxq configuration.
:param value: Default number of rxqs.
:type value: str
"""
- path = ['dpdk', 'dev default', 'num-rx-queues']
+ path = [u"dpdk", u"dev default", u"num-rx-queues"]
self.add_config_item(self._nodeconfig, value, path)
def add_dpdk_dev_default_txq(self, value):
:param value: Default number of txqs.
:type value: str
"""
- path = ['dpdk', 'dev default', 'num-tx-queues']
+ path = [u"dpdk", u"dev default", u"num-tx-queues"]
self.add_config_item(self._nodeconfig, value, path)
def add_dpdk_dev_default_rxd(self, value):
:param value: Default number of rxds.
:type value: str
"""
- path = ['dpdk', 'dev default', 'num-rx-desc']
+ path = [u"dpdk", u"dev default", u"num-rx-desc"]
self.add_config_item(self._nodeconfig, value, path)
def add_dpdk_dev_default_txd(self, value):
:param value: Default number of txds.
:type value: str
"""
- path = ['dpdk', 'dev default', 'num-tx-desc']
+ path = [u"dpdk", u"dev default", u"num-tx-desc"]
self.add_config_item(self._nodeconfig, value, path)
- def add_dpdk_socketmem(self, value):
- """Add DPDK socket memory configuration.
+ def add_dpdk_log_level(self, value):
+ """Add DPDK log-level configuration.
- :param value: Socket memory size.
+ :param value: Log level.
:type value: str
"""
- path = ['dpdk', 'socket-mem']
+ path = [u"dpdk", u"log-level"]
self.add_config_item(self._nodeconfig, value, path)
- def add_dpdk_uio_driver(self, value):
+ def add_dpdk_no_pci(self):
+ """Add DPDK no-pci."""
+ path = [u"dpdk", u"no-pci"]
+ self.add_config_item(self._nodeconfig, u"", path)
+
+ def add_dpdk_uio_driver(self, value=None):
"""Add DPDK uio-driver configuration.
- :param value: DPDK uio-driver configuration.
+ :param value: DPDK uio-driver configuration. By default, driver will be
+ loaded automatically from Topology file, still leaving option
+ to manually override by parameter.
+ :type value: str
+ """
+ if value is None:
+ value = Topology.get_uio_driver(self._node)
+ path = [u"dpdk", u"uio-driver"]
+ self.add_config_item(self._nodeconfig, value, path)
+
+ def add_dpdk_max_simd_bitwidth(self, variant=Constants.GRAPH_NODE_VARIANT):
+ """Add DPDK max-simd-bitwidth configuration.
+
+ :param value: Graph node variant default value.
:type value: str
"""
- path = ['dpdk', 'uio-driver']
+ if variant == u"icl":
+ value = 512
+ elif variant in [u"skx", u"hsw"]:
+ value = 256
+ else:
+ return
+
+ path = [u"dpdk", u"max-simd-bitwidth"]
self.add_config_item(self._nodeconfig, value, path)
def add_cpu_main_core(self, value):
:param value: Main core option.
:type value: str
"""
- path = ['cpu', 'main-core']
+ path = [u"cpu", u"main-core"]
self.add_config_item(self._nodeconfig, value, path)
def add_cpu_corelist_workers(self, value):
:param value: Corelist-workers option.
:type value: str
"""
- path = ['cpu', 'corelist-workers']
+ path = [u"cpu", u"corelist-workers"]
self.add_config_item(self._nodeconfig, value, path)
- def add_heapsize(self, value):
- """Add Heapsize configuration.
+ def add_main_heap_size(self, value):
+ """Add Main Heap Size configuration.
- :param value: Amount of heapsize.
+ :param value: Amount of heap.
:type value: str
"""
- path = ['heapsize']
+ path = [u"memory", u"main-heap-size"]
+ self.add_config_item(self._nodeconfig, value, path)
+
+ def add_main_heap_page_size(self, value):
+ """Add Main Heap Page Size configuration.
+
+ :param value: Heap page size.
+ :type value: str
+ """
+ path = [u"memory", u"main-heap-page-size"]
+ self.add_config_item(self._nodeconfig, value, path)
+
+ def add_default_hugepage_size(self, value=Constants.DEFAULT_HUGEPAGE_SIZE):
+ """Add Default Hugepage Size configuration.
+
+ :param value: Hugepage size.
+ :type value: str
+ """
+ path = [u"memory", u"default-hugepage-size"]
self.add_config_item(self._nodeconfig, value, path)
def add_api_trace(self):
"""Add API trace configuration."""
- path = ['api-trace', 'on']
- self.add_config_item(self._nodeconfig, '', path)
+ path = [u"api-trace", u"on"]
+ self.add_config_item(self._nodeconfig, u"", path)
def add_ip6_hash_buckets(self, value):
"""Add IP6 hash buckets configuration.
:param value: Number of IP6 hash buckets.
:type value: str
"""
- path = ['ip6', 'hash-buckets']
+ path = [u"ip6", u"hash-buckets"]
self.add_config_item(self._nodeconfig, value, path)
def add_ip6_heap_size(self, value):
:param value: IP6 Heapsize amount.
:type value: str
"""
- path = ['ip6', 'heap-size']
+ path = [u"ip6", u"heap-size"]
+ self.add_config_item(self._nodeconfig, value, path)
+
+ def add_spd_flow_cache_ipv4_outbound(self):
+ """Add SPD flow cache for IP4 outbound traffic"""
+ path = [u"ipsec", u"ipv4-outbound-spd-flow-cache"]
+ self.add_config_item(self._nodeconfig, "on", path)
+
+ def add_statseg_size(self, value):
+ """Add Stats Heap Size configuration.
+
+ :param value: Stats heapsize amount.
+ :type value: str
+ """
+ path = [u"statseg", u"size"]
+ self.add_config_item(self._nodeconfig, value, path)
+
+ def add_statseg_page_size(self, value):
+ """Add Stats Heap Page Size configuration.
+
+ :param value: Stats heapsize amount.
+ :type value: str
+ """
+ path = [u"statseg", u"page-size"]
self.add_config_item(self._nodeconfig, value, path)
- def add_ip_heap_size(self, value):
- """Add IP heap-size configuration.
+ def add_statseg_per_node_counters(self, value):
+ """Add stats per-node-counters configuration.
- :param value: IP Heapsize amount.
+ :param value: "on" to switch the counters on.
:type value: str
"""
- path = ['ip', 'heap-size']
+ path = [u"statseg", u"per-node-counters"]
self.add_config_item(self._nodeconfig, value, path)
- def add_plugin_disable(self, *plugins):
- """Add plugin disable for specific plugin.
+ def add_plugin(self, state, *plugins):
+ """Add plugin section for specific plugin(s).
+ :param state: State of plugin [enable|disable].
:param plugins: Plugin(s) to disable.
+ :type state: str
:type plugins: list
"""
for plugin in plugins:
- path = ['plugins', 'plugin {0}'.format(plugin), 'disable']
- self.add_config_item(self._nodeconfig, ' ', path)
+ path = [u"plugins", f"plugin {plugin}", state]
+ self.add_config_item(self._nodeconfig, u" ", path)
def add_dpdk_no_multi_seg(self):
"""Add DPDK no-multi-seg configuration."""
- path = ['dpdk', 'no-multi-seg']
- self.add_config_item(self._nodeconfig, '', path)
+ path = [u"dpdk", u"no-multi-seg"]
+ self.add_config_item(self._nodeconfig, u"", path)
def add_dpdk_no_tx_checksum_offload(self):
"""Add DPDK no-tx-checksum-offload configuration."""
- path = ['dpdk', 'no-tx-checksum-offload']
- self.add_config_item(self._nodeconfig, '', path)
+ path = [u"dpdk", u"no-tx-checksum-offload"]
+ self.add_config_item(self._nodeconfig, u"", path)
- def add_nat(self, value='deterministic'):
- """Add NAT configuration.
+ def add_nat(self, value=u"deterministic"):
+ """Add NAT mode configuration.
:param value: NAT mode.
:type value: str
"""
- path = ['nat']
+ path = [u"nat", value]
+ self.add_config_item(self._nodeconfig, u"", path)
+
+ def add_nat_max_translations_per_thread(self, value):
+ """Add NAT max. translations per thread number configuration.
+
+ :param value: NAT mode.
+ :type value: str
+ """
+ path = [u"nat", u"max translations per thread"]
+ self.add_config_item(self._nodeconfig, value, path)
+
+ def add_nsim_poll_main_thread(self):
+ """Add NSIM poll-main-thread configuration."""
+ path = [u"nsim", u"poll-main-thread"]
+ self.add_config_item(self._nodeconfig, u"", path)
+
+ def add_tcp_congestion_control_algorithm(self, value=u"cubic"):
+ """Add TCP congestion control algorithm.
+
+ :param value: The congestion control algorithm to use. Example: cubic
+ :type value: str
+ """
+ path = [u"tcp", u"cc-algo"]
self.add_config_item(self._nodeconfig, value, path)
def add_tcp_preallocated_connections(self, value):
:param value: The number of pre-allocated connections.
:type value: int
"""
- path = ['tcp', 'preallocated-connections']
+ path = [u"tcp", u"preallocated-connections"]
self.add_config_item(self._nodeconfig, value, path)
def add_tcp_preallocated_half_open_connections(self, value):
:param value: The number of pre-allocated half open connections.
:type value: int
"""
- path = ['tcp', 'preallocated-half-open-connections']
+ path = [u"tcp", u"preallocated-half-open-connections"]
self.add_config_item(self._nodeconfig, value, path)
+ def add_session_enable(self):
+ """Add session enable."""
+ path = [u"session", u"enable"]
+ self.add_config_item(self._nodeconfig, u"", path)
+
+ def add_session_event_queues_memfd_segment(self):
+ """Add session event queue memfd segment."""
+ path = [u"session", u"evt_qs_memfd_seg"]
+ self.add_config_item(self._nodeconfig, u"", path)
+
def add_session_event_queue_length(self, value):
"""Add session event queue length.
:param value: Session event queue length.
:type value: int
"""
- path = ['session', 'event-queue-length']
+ path = [u"session", u"event-queue-length"]
+ self.add_config_item(self._nodeconfig, value, path)
+
+ def add_session_event_queues_segment_size(self, value):
+ """Add session event queue length.
+
+ :param value: Session event queue segment size.
+ :type value: str
+ """
+ path = [u"session", u"evt_qs_seg_size"]
self.add_config_item(self._nodeconfig, value, path)
def add_session_preallocated_sessions(self, value):
:param value: Number of pre-allocated sessions.
:type value: int
"""
- path = ['session', 'preallocated-sessions']
+ path = [u"session", u"preallocated-sessions"]
self.add_config_item(self._nodeconfig, value, path)
def add_session_v4_session_table_buckets(self, value):
:param value: Number of v4 session table buckets.
:type value: int
"""
- path = ['session', 'v4-session-table-buckets']
+ path = [u"session", u"v4-session-table-buckets"]
self.add_config_item(self._nodeconfig, value, path)
def add_session_v4_session_table_memory(self, value):
:param value: Size of v4 session table memory.
:type value: str
"""
- path = ['session', 'v4-session-table-memory']
+ path = [u"session", u"v4-session-table-memory"]
self.add_config_item(self._nodeconfig, value, path)
def add_session_v4_halfopen_table_buckets(self, value):
:param value: Number of v4 halfopen table buckets.
:type value: int
"""
- path = ['session', 'v4-halfopen-table-buckets']
+ path = [u"session", u"v4-halfopen-table-buckets"]
self.add_config_item(self._nodeconfig, value, path)
def add_session_v4_halfopen_table_memory(self, value):
:param value: Size of v4 halfopen table memory.
:type value: str
"""
- path = ['session', 'v4-halfopen-table-memory']
+ path = [u"session", u"v4-halfopen-table-memory"]
self.add_config_item(self._nodeconfig, value, path)
def add_session_local_endpoints_table_buckets(self, value):
:param value: Number of local endpoints table buckets.
:type value: int
"""
- path = ['session', 'local-endpoints-table-buckets']
+ path = [u"session", u"local-endpoints-table-buckets"]
self.add_config_item(self._nodeconfig, value, path)
def add_session_local_endpoints_table_memory(self, value):
:param value: Size of local endpoints table memory.
:type value: str
"""
- path = ['session', 'local-endpoints-table-memory']
+ path = [u"session", u"local-endpoints-table-memory"]
self.add_config_item(self._nodeconfig, value, path)
- def apply_config(self, filename=None, waittime=5,
- retries=12, restart_vpp=True):
- """Generate and apply VPP configuration for node.
+ def write_config(self, filename=None):
+ """Generate and write VPP startup configuration to file.
Use data from calls to this class to form a startup.conf file and
- replace /etc/vpp/startup.conf with it on node.
+ replace /etc/vpp/startup.conf with it on topology node.
:param filename: Startup configuration file name.
- :param waittime: Time to wait for VPP to restart (default 5 seconds).
- :param retries: Number of times (default 12) to re-try waiting.
- :param restart_vpp: Whether to restart VPP.
:type filename: str
- :type waittime: int
- :type retries: int
- :type restart_vpp: bool.
- :raises RuntimeError: If writing config file failed or restart of VPP
- failed or backup of VPP startup.conf failed.
"""
self.dump_config(self._nodeconfig)
- ssh = SSH()
- ssh.connect(self._node)
-
if filename is None:
filename = self._vpp_startup_conf
- if self._vpp_startup_conf_backup is not None:
- (ret, _, _) = \
- ssh.exec_command('sudo cp {0} {1}'.
- format(self._vpp_startup_conf,
- self._vpp_startup_conf_backup))
- if ret != 0:
- raise RuntimeError('Backup of config file failed on node {}'.
- format(self._hostname))
-
- (ret, _, _) = \
- ssh.exec_command('echo "{config}" | sudo tee {filename}'.
- format(config=self._vpp_config,
- filename=filename))
-
- if ret != 0:
- raise RuntimeError('Writing config file failed to node {}'.
- format(self._hostname))
-
- if restart_vpp:
- # Instead of restarting, we'll do separate start and stop
- # actions. This way we don't care whether VPP was running
- # to begin with.
- ssh.exec_command('sudo service {} stop'
- .format(self._vpp_service_name))
- (ret, _, _) = \
- ssh.exec_command('sudo service {} start'
- .format(self._vpp_service_name))
- if ret != 0:
- raise RuntimeError('Restarting VPP failed on node {}'.
- format(self._hostname))
-
- # Sleep <waittime> seconds, up to <retry> times,
- # and verify if VPP is running.
- for _ in range(retries):
- time.sleep(waittime)
- (ret, stdout, _) = \
- ssh.exec_command('echo show hardware-interfaces | '
- 'nc 0 5002 || echo "VPP not yet running"')
- if ret == 0 and stdout != 'VPP not yet running':
- break
- else:
- raise RuntimeError('VPP failed to restart on node {}'.
- format(self._hostname))
-
- def restore_config(self):
- """Restore VPP startup.conf from backup.
-
- :raises RuntimeError: When restoration of startup.conf file failed.
- """
-
- ssh = SSH()
- ssh.connect(self._node)
-
- (ret, _, _) = ssh.exec_command('sudo cp {0} {1}'.
- format(self._vpp_startup_conf_backup,
- self._vpp_startup_conf))
- if ret != 0:
- raise RuntimeError('Restoration of config file failed on node {}'.
- format(self._hostname))
+ cmd = f"echo \"{self._vpp_config}\" | sudo tee {filename}"
+ exec_cmd_no_error(
+ self._node, cmd, message=u"Writing config file failed!"
+ )
+
+ def apply_config(self, filename=None, verify_vpp=True):
+ """Generate and write VPP startup configuration to file and restart VPP.
+
+ Use data from calls to this class to form a startup.conf file and
+ replace /etc/vpp/startup.conf with it on topology node.
+
+ :param filename: Startup configuration file name.
+ :param verify_vpp: Verify VPP is running after restart.
+ :type filename: str
+ :type verify_vpp: bool
+ """
+ self.write_config(filename=filename)
+
+ VPPUtil.restart_vpp_service(self._node, self._node_key)
+ if verify_vpp:
+ VPPUtil.verify_vpp(self._node)